376 A COMPENDIUM OF 
compressed glands. The anthers have 4 cells, 
which open by as many ascending valves. The 
fruit is a drupe, and situated in the base of the 
perianth. The wood of the tree is much used 
in China for making boxes, trunks, etc., to pre- 
serve clothing against moths. 
Camphora, Camphor, Gum Camphor; is 
really a concrete volatile oil, and is obtained 
from the above trees by exposing the wood 
and branches to the vapors of the boiling water. 
The crude camphor thus obtained is pressed 
from the adhering volatile oil of camphor, after 
which itis refined by sublimation. Crude Cam- 
phor occurs in commerce in small grains or gran- 
ular masses, packed in lead-lined chests contain- 
ing about 130 pounds. The Chinese camphor 
is cheaper than the Japanese, and is produced 
in the Island of Formosa. Most of the crude 
camphor is sent from Canton, but it also comes 
from Batavia, Calcutta, Singapore, and even 
London. Crude camphor is rarely if ever to be 
found in the drug stores. Refined Camphor is 
found in blocks or tough translucent masses of 
a crystalline texture, easily pulverized in the 
presence of a small quantity of alcohol or ether; 
odor of its own kind and penetrating; taste, 
cool and pungent, slightly soluble in water, but 
freely so in alcohol, ether and oil. When heated 
with acid nitric it yields 2 acids: Camphoric and 
Camphoronic acid; with the zinc chloride it 
yields a substance called cymol. The specific 
gravity of campor is 0.99, whilst it melts at 
347 P75 C), Dolls at 401° F. (205° C), 
and burns without leaving any residue. The 
